Free Breathing And Exchange Of Gases (Daily Quiz: 10) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Breathing And Exchange Of Gases (Daily Quiz: 10) Time:

Question-1

Carbon dioxide is transported from tissues to respiratory surface by only

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Carbon dioxide is carried by the blood in three forms : physical solution, bicarbonate ions and carbamino-haemoglobin. A very small amount of carbon dioxide dissolves in the plasma and is carried as a physical solution. About 70% of carbon dioxide released by respiring tissue cells diffuses into the plasma and then into the red blood corpuscles. Here, CO2 combines with water to form carbonic acid. Carbonic acid dissociates into bicarbonate and hydrogen ions.


Question-2

Arrange the following in the order of increasing volume
  1. Tidal volume
  2. Residual volume
  3. Expiratory reserve volume
  4. Inspiratory reserve volume

(a)

(b)

(c)

(d)


Question-3

Mark the incorrect statement in context to $O_2$ binding to Hb

(a)

(b)

(c)

(d)


Question-4

Which one of the following organs in the human body is most affected due to shortage of oxygen?

(a)

(b)

(c)

(d)

Explanation:

Answer: (d)

Brain is the most vital organ. It stops functioning in the absence of $O_{2}$.


Question-5

Incidence of Emphysema, a respiratory disorder is high in cigarette smokers. In such cases

(a)

(b)

(c)

(d)


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